A833 Tail shaft

Oldmanmopar said

The OD gears set won't go in the standard 833. You would need to use the cluster. So you would need to use the input shaft. The input won't fit in the 833 case. Just leave the OD together. If the OD is the 30 spline main shaft the tail shaft housing can be used . Then you just need to buy a main shaft from Brewers Performance.

Brewer's Performance - Mopar A833 4-Speed Transmission and Component Specialists

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You are not correct. I do it all the time. You just need to swap the input bearing to a 307 and of course use the whole gear set including the cluster gear, input shaft and the rest. Some early O/D used the 307 and small bearing main case, at that point he could just swap front bearing retainers and run the O/D.

Or buy an "A" tailshaft housing and main shaft. Then sell the "B" tailshaft housing and main shaft. He is less than an hour away from Passon Performance.

https://www.passonperformance.com/